Experimental investigation of the effect of cyclohexane and 1,3 dioxolane improvers on the thermodynamic conditions of carbon dioxide hydrate formation

Document Type : Research paper

Author

Process Engineering Department, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran

Abstract

Growing energy demand and greenhouse gas emissions have led to various methods of supplying energy and reducing greenhouse gas emissions. The reduction of greenhouse gases can be achieved using gas hydrate. Researchers used cyclohexane and 1,3 dioxolane as promoters in this study to reduce costs and to improve thermodynamic conditions (an increase in equilibrium temperature and a decrease in equilibrium pressure). Results indicated that the addition of cyclohexane improved thermodynamic conditions and increased equilibrium temperature by 2 K. In addition, 1,3 dioxolane at 6.4 and 10.2 wt.% has increased the equilibrium temperature by 3.5 and 5 K, respectively. According to the findings, incorporating cyclohexane and 1,3 dioxolane at 4.1, 6.4, and 10.2 wt.% at low pressure of 15-20 bar, results in an elevation of the equilibrium temperature by 2.5, 3, and 4 K, respectively. However, at high-pressure ranges of 30-35 bar, the increase in equilibrium temperatures was relatively lower, with values of 1, 2.5, and 3 K, respectively.

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References

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Journal of Separation Science and Engineering
Volume 15, Issue 1
September 2023
Pages 106-119

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